Prior to DHIPP, the entire State Highway system was photographed every five years. Approximately one-fifth of the highway system was photographed each year with emphasis on newly completed projects. The photographs, known as Highway Inventory Photos, are still available but have largely been replaced by DHIPP imagery.

The District Survey Office or Traffic Office may maintain Highway Inventory Photographs. Engineers must not remove Highway Inventory Photographs without permission. Copies of Highway Inventory Photographs may be requested from the district’s Photogrammetry Coordinator. Some districts utilize a Photogrammetry Request form for requesting duplicate photos, photo enlargements, or photos suitable for xerographic reproduction.